Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 924 · 40 sums

The trick (Ekanyunena Purvena): Write the number with as many digits as there are nines (add zeros in front if needed). Left part: the number minus 1. Right part: “all from 9 and the last from 10” of the number. More digits than the nines (237 × 99)? Split off as many digits as there are nines (2 | 37): left = number − (front part + 1) = 234, right = complement of 37 = 63 → 23463.

1. 1.8 × 9 =
2. 2.81 × 99 =
3. 3.7 × 9 =
4. 4.101 × 9 =
5. 5.1303 × 99 =
6. 6.3 × 9 =
7. 7.41 × 99 =
8. 8.366 × 999 =
9. 9.3 × 9 =
10. 10.4 × 9 =
11. 11.5 × 9 =
12. 12.34 × 99 =
13. 13.924 × 99 =
14. 14.53 × 9 =
15. 15.817 × 999 =
16. 16.6 × 9 =
17. 17.43 × 99 =
18. 18.92 × 99 =
19. 19.282 × 999 =
20. 20.47 × 9 =
21. 21.791 × 999 =
22. 22.32 × 99 =
23. 23.1181 × 99 =
24. 24.704 × 999 =
25. 25.685 × 999 =
26. 26.3 × 9 =
27. 27.845 × 999 =
28. 28.72 × 99 =
29. 29.4 × 9 =
30. 30.326 × 999 =
31. 31.4 × 9 =
32. 32.1394 × 99 =
33. 33.4 × 9 =
34. 34.64 × 9 =
35. 35.2222 × 99 =
36. 36.869 × 999 =
37. 37.14418 × 999 =
38. 38.323 × 999 =
39. 39.307 × 999 =
40. 40.954 × 99 =

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